Brandy Shelton of Greensboro, North Carolina, “twerks” for a group of bikers on Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. After three people were killed and seven wounded in shootings during 2014 Bikefest, State officials called for an end to the event that draws thousands to the family-friendly beach town.Their efforts were unsuccessful. Bikers returned to Myrtle Beach – just a week after a bloody motorcycle gang shootout in Waco, Texas. But this time authorities are more prepared, with dozens of new surveillance cameras and a police force three times the size of last year's. (Photo by Randall Hill/Reuters)

A biker burns out his tyre along Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

T-shirts are displayed for sale at a vendor's booth during the 2015 Atlantic Beach Memorial Day BikeFest in Atlantic Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Bikers cruise down Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Bill Marion of Seattle, Washington, wears an Elvis mask at the Beach House Bar & Grill during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Bikers cruise down Kings Highway during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

A customized SUV cruises down Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Members of the Sportsman Motorcycle Club of North Myrtle Beach, South Carolina check out the sights during the 2015 Atlantic Beach Memorial Day BikeFest in Atlantic Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Bikers wait in traffic on Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Kenyatta Redd of Martinsville, Virginia watches the crowds from the Beach House Bar & Grill during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Houston Oliver takes his dog Sosa for a walk along Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

A biker and his rider are seen along Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

A customized car cruises down Ocean Boulevard during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)

Trinity Jai of Columbus, Ohio, uses a selfie stick and phone to take a photo during the 2015 Atlantic Beach Memorial Day BikeFest in Myrtle Beach, South Carolina May 22, 2015. (Photo by Randall Hill/Reuters)